The latest MLB trade rumors cover issues with the New York Mets and Boston Red Sox, and a surprising Mason Miller development.

Mets rumors swirl as MLB Free Agency heats up, with Willson Contreras and Christian Walker at the center of New York’s trade debate.

The New York Mets lost a key piece in their lineup this week. Pete Alonso has signed a five-year deal with the Baltimore Orioles, leaving a void at first base in the Mets lineup.

Another possibility could come via trade, with the Mets reportedly checking in on St. Louis Cardinals first baseman Willson Contreras, per John Denton of MLB.com. Contreras spent nine MLB seasons primarily at catcher before making the switch to first base last year. The three-time All-Star hit .257 with 20 home runs and 80 RBI in 2025.

A closer look at the Red Sox and Mets as potential suitors for Willson Contreras, including roster fit, trade likelihood, and which team makes more sense.

The Mets are looking to re-sign Tyler Rogers, while showing interest in trade deals for Luis Robert Jr. and Tarik Skubal.

The Mets need to add depth and consistency to their rotation and Brewers starter Freddy Peralta could be the answer.

As MLB's offseason hot stove continues following the conclusion of the winter meetings, some new players are hitting the buzz on the trade market, including Corey Seager and Jeff McNeil.

The Phillies have agreed to a five-year, $150 million deal to re-sign DH Kyle Schwarber, according to ESPN's Jeff Passan. Schwarber, who was the runner-up for NL MVP in 2025, was also pursued by the Reds, Pirates, Orioles and Mets.